Abstract: The invention relates to an automatic mechanical apparatus comprising a container (1) placed within the equipment to be freed and from which leave two cables (3) within sheaths (2) which connect two controls retaining the loops of the equipment in the suspension straps worn by the parachutist.The apparatus serves to exert a simultaneous pulling on the two cables (3) with a sufficient delay to cause the liberation of the equipment, after opening and stabilization of the parachute.To this end, the container (1) contains a plunger (48) which is maneuverable by an inertia due to the deceleration caused by the opening of the parachute, the activation of a spring motor (25) having a decelerator whose slow rotation causes the delayed unlatching of a detent spring (11) causing the oscillation of a return lever (9) of the cables (3) for liberation of the equipment.

Abstract: Buckle for retarded automatic unlocking of safety belts and harnesses of parachuting equipment or of vehicles, which comprises a frame slideably mounted in a casing and a shaft in the frame for supporting a swinging bolt adapted to imprison the shackle of a strap, or release either instantaneously under the direct action of a manual control means or with a delay under the action of an automatic control means connected to the bolt and actuated by springs compressed by the shackle when the shackle is introduced inside the casing. The automatic control means is itself locked by means adapted to be slowly withdrawn, by means of a brake, under the action of a traction force exerted by the shackle on the bolt providing the sliding movement of the frame against the action of a return spring bringing back the frame to its initial position as soon as the traction force of the shackle on the strap substantially diminishes or ceases.

Abstract: Buckle for retarded automatic unlocking of safety belts and harnesses of parachuting equipment or of vehicles, which comprises a frame slideably mounted in a casing and a shaft in the frame for supporting a swinging bolt adapted to imprison the shackle of a strap, or release either instantaneously under the direct action of a manual control means or with a delay under the action of an automatic control means connected to the bolt and actuated by springs compressed by the shackle when the shackle is introduced inside the casing. The automatic control means is itself locked by means adapted to be slowly withdrawn, by means of a brake, under the action of a traction force exerted by the shackle on the bolt providing the sliding movement of the frame against the action of a return spring bringing back the frame to its initial position as soon as the traction force of the shackle on the strap substantially diminishes or ceases.